Schedule III - Real Estate and Accumulated Depreciation and Amortization - Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 390,272
Land and Land Estates	355,697
Buildings and Improvements	2,962,982
Total	3,320,574	$ 3,090,134	$ 3,936,459	$ 3,533,172
Accumulated Depreciation and Amortization	675,596	$ 722,644	$ 890,969	$ 844,931
Deferred loan costs, net	$ 3,600
Building and Improvements | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Land Estates | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	51 years
Industrial Property | Anniston, Alabama
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,201
Buildings and Improvements	16,771
Total	17,972
Accumulated Depreciation and Amortization	3,948
Industrial Property | Opelika, Alabama
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	142
Buildings and Improvements	31,734
Total	31,876
Accumulated Depreciation and Amortization	3,280
Industrial Property | Goodyear, Arizona | Goodyear, AZ Industrial Acquired Nov-18
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,247
Buildings and Improvements	36,115
Total	41,362
Accumulated Depreciation and Amortization	1,788
Industrial Property | Goodyear, Arizona | Goodyear, AZ Industrial Acquired Nov-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	41,877
Land and Land Estates	11,970
Buildings and Improvements	48,924
Total	60,894
Accumulated Depreciation and Amortization	183
Industrial Property | Tolleson, Arizona
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,311
Buildings and Improvements	16,013
Total	19,324
Accumulated Depreciation and Amortization	177
Industrial Property | Orlando, Florida
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,030
Buildings and Improvements	10,869
Total	11,899
Accumulated Depreciation and Amortization	3,984
Industrial Property | Tampa, Florida
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,160
Buildings and Improvements	8,526
Total	10,686
Accumulated Depreciation and Amortization	7,041
Industrial Property | Austell, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,251
Buildings and Improvements	40,035
Total	43,286
Accumulated Depreciation and Amortization	882
Industrial Property | Lavonia, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	171
Buildings and Improvements	7,657
Total	7,828
Accumulated Depreciation and Amortization	1,588
Industrial Property | McDonough, Georgia | McDonough, GA Industrial Acquired Aug-17
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,441
Buildings and Improvements	52,790
Total	58,231
Accumulated Depreciation and Amortization	5,293
Industrial Property | McDonough, Georgia | McDonough, GA Industrial Acquired Feb-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,253
Buildings and Improvements	30,956
Total	34,209
Accumulated Depreciation and Amortization	1,237
Industrial Property | McDonough, Georgia | McDonough, GA Industrial Acquired Dec-06
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,463
Buildings and Improvements	24,811
Total	27,274
Accumulated Depreciation and Amortization	8,453
Industrial Property | Union City, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,536
Buildings and Improvements	22,830
Total	25,366
Accumulated Depreciation and Amortization	504
Industrial Property | Edwardsville, Illinois | Edwardsville, IL Industrial Acquired Dec-16
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,593
Buildings and Improvements	34,362
Total	38,955
Accumulated Depreciation and Amortization	4,268
Industrial Property | Edwardsville, Illinois | Edwardsville, IL Industrial Acquired Jun- 18
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,649
Buildings and Improvements	41,310
Total	44,959
Accumulated Depreciation and Amortization	2,796
Industrial Property | Minooka, Illinois
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,432
Buildings and Improvements	40,947
Total	44,379
Accumulated Depreciation and Amortization	0
Industrial Property | Rantoul, Illinois
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,304
Buildings and Improvements	32,562
Total	33,866
Accumulated Depreciation and Amortization	5,368
Industrial Property | Rockford, Illinois | Rockford, IL Industrial Acquired Dec-06
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	371
Buildings and Improvements	2,633
Total	3,004
Accumulated Depreciation and Amortization	938
Industrial Property | Rockford, Illinois | Rockford, IL Industrial Acquired Dec-06, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	509
Buildings and Improvements	5,921
Total	6,430
Accumulated Depreciation and Amortization	1,900
Industrial Property | Romeoville, Illinois
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	7,524
Buildings and Improvements	40,167
Total	47,691
Accumulated Depreciation and Amortization	5,118
Industrial Property | Lafayette, Indiana
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	662
Buildings and Improvements	15,578
Total	16,240
Accumulated Depreciation and Amortization	1,800
Industrial Property | Lebanon, Indiana
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,100
Buildings and Improvements	29,443
Total	31,543
Accumulated Depreciation and Amortization	3,526
Industrial Property | Whitestown, Indiana
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,954
Buildings and Improvements	16,821
Total	18,775
Accumulated Depreciation and Amortization	719
Industrial Property | New Century, Kansas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	0
Buildings and Improvements	13,330
Total	13,330
Accumulated Depreciation and Amortization	1,680
Industrial Property | Dry Ridge, Kentucky
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	560
Buildings and Improvements	12,553
Total	13,113
Accumulated Depreciation and Amortization	6,325
Industrial Property | Elizabethtown, Kentucky | Elizabethtown, KY Industrial Acquired Jun-05
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	890
Buildings and Improvements	26,868
Total	27,758
Accumulated Depreciation and Amortization	13,538
Industrial Property | Elizabethtown, Kentucky | Elizabethtown, KY Industrial Acquired Jun-05, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	352
Buildings and Improvements	4,862
Total	5,214
Accumulated Depreciation and Amortization	2,450
Industrial Property | Hopkinsville, Kentucky
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	631
Buildings and Improvements	16,154
Total	16,785
Accumulated Depreciation and Amortization	8,673
Industrial Property | Owensboro, Kentucky | Owensboro, KY Industrial Acquired Jun-05
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	393
Buildings and Improvements	11,956
Total	12,349
Accumulated Depreciation and Amortization	6,971
Industrial Property | Owensboro, Kentucky | Owensboro, KY Industrial Acquired Dec-06
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	819
Buildings and Improvements	2,439
Total	3,258
Accumulated Depreciation and Amortization	1,169
Industrial Property | Shreveport, Louisiana | Shreveport, LA Industrial Acquired Mar-07
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	860
Buildings and Improvements	21,840
Total	22,700
Accumulated Depreciation and Amortization	6,984
Industrial Property | Shreveport, Louisiana | Shreveport, LA Industrial Acquired Jun-12
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,078
Buildings and Improvements	10,134
Total	11,212
Accumulated Depreciation and Amortization	2,796
Industrial Property | North Berwick, Maine
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,383
Buildings and Improvements	35,659
Total	37,042
Accumulated Depreciation and Amortization	11,603
Industrial Property | Detroit, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,133
Buildings and Improvements	25,009
Total	26,142
Accumulated Depreciation and Amortization	5,204
Industrial Property | Kalamazoo, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,942
Buildings and Improvements	14,169
Total	16,111
Accumulated Depreciation and Amortization	4,175
Industrial Property | Marshall, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	143
Buildings and Improvements	4,302
Total	4,445
Accumulated Depreciation and Amortization	3,271
Industrial Property | Plymouth, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,296
Buildings and Improvements	15,772
Total	18,068
Accumulated Depreciation and Amortization	6,912
Industrial Property | Romulus, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,438
Buildings and Improvements	33,786
Total	36,224
Accumulated Depreciation and Amortization	3,842
Industrial Property | Warren, Michigan
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	25,850
Land and Land Estates	972
Buildings and Improvements	42,521
Total	43,493
Accumulated Depreciation and Amortization	3,851
Industrial Property | Minneapolis, Minnesota
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,886
Buildings and Improvements	1,922
Total	3,808
Accumulated Depreciation and Amortization	440
Industrial Property | Byhalia, Mississippi | Byhalia, MS Industrial Property Acquired May-11
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,006
Buildings and Improvements	35,795
Total	36,801
Accumulated Depreciation and Amortization	7,350
Industrial Property | Byhalia, Mississippi | Byhalia, MS Industrial Property Acquired Sep-17
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,751
Buildings and Improvements	31,236
Total	32,987
Accumulated Depreciation and Amortization	4,094
Industrial Property | Canton, Mississippi
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,077
Buildings and Improvements	71,289
Total	76,366
Accumulated Depreciation and Amortization	16,402
Industrial Property | Olive Branch, Mississippi | Olive Branch, MS Industrial Acquired Apr- 18
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,500
Buildings and Improvements	42,556
Total	45,056
Accumulated Depreciation and Amortization	3,432
Industrial Property | Olive Branch, Mississippi | Olive Branch, MS Industrial Acquired Dec- 04
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	198
Buildings and Improvements	10,276
Total	10,474
Accumulated Depreciation and Amortization	7,794
Industrial Property | Olive Branch, Mississippi | Olive Branch, MS Industrial Acquired May-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,646
Buildings and Improvements	40,446
Total	43,092
Accumulated Depreciation and Amortization	1,016
Industrial Property | Olive Branch, Mississippi | Olive Branch, MS Industrial Acquired Apr- 18, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,958
Buildings and Improvements	38,702
Total	40,660
Accumulated Depreciation and Amortization	3,131
Industrial Property | Olive Branch, Mississippi | Olive Branch, MS Industrial Acquired May-19, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	851
Buildings and Improvements	15,464
Total	16,315
Accumulated Depreciation and Amortization	384
Industrial Property | Lumberton, North Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	405
Buildings and Improvements	12,049
Total	12,454
Accumulated Depreciation and Amortization	5,039
Industrial Property | Shelby, North Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,421
Buildings and Improvements	18,862
Total	20,283
Accumulated Depreciation and Amortization	6,007
Industrial Property | Statesville, North Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	891
Buildings and Improvements	16,771
Total	17,662
Accumulated Depreciation and Amortization	6,148
Industrial Property | Durham, New Hampshire
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,464
Buildings and Improvements	18,094
Total	21,558
Accumulated Depreciation and Amortization	7,563
Industrial Property | North Las Vegas, Nevada
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,244
Buildings and Improvements	21,732
Total	24,976
Accumulated Depreciation and Amortization	3,582
Industrial Property | Erwin, New York
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,648
Buildings and Improvements	12,514
Total	14,162
Accumulated Depreciation and Amortization	3,504
Industrial Property | Long Island City, New York
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	36,449
Land and Land Estates	0
Buildings and Improvements	42,759
Total	42,759
Accumulated Depreciation and Amortization	19,432
Industrial Property | Chillicothe, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	735
Buildings and Improvements	9,021
Total	9,756
Accumulated Depreciation and Amortization	3,406
Industrial Property | Cincinnati, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,049
Buildings and Improvements	8,784
Total	9,833
Accumulated Depreciation and Amortization	3,364
Industrial Property | Columbus, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,990
Buildings and Improvements	10,893
Total	12,883
Accumulated Depreciation and Amortization	4,573
Industrial Property | Glenwillow, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,228
Buildings and Improvements	24,530
Total	26,758
Accumulated Depreciation and Amortization	8,373
Industrial Property | Hebron, Ohio | Hebron, OH Industrial, Acquired Dec-97
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,063
Buildings and Improvements	4,947
Total	6,010
Accumulated Depreciation and Amortization	2,198
Industrial Property | Hebron, Ohio | Hebron, OH Industrial, Acquired Dec-01
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,681
Buildings and Improvements	8,179
Total	9,860
Accumulated Depreciation and Amortization	3,863
Industrial Property | Monroe, Ohio | Monroe, OH Industrial Acquired Sep-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	544
Buildings and Improvements	12,370
Total	12,914
Accumulated Depreciation and Amortization	177
Industrial Property | Monroe, Ohio | Monroe, OH Industrial Acquired Sep-19, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,123
Buildings and Improvements	60,702
Total	63,825
Accumulated Depreciation and Amortization	903
Industrial Property | Monroe, Ohio | Monroe, OH Industrial Acquired Sep-19, Property 3
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,950
Buildings and Improvements	88,422
Total	92,372
Accumulated Depreciation and Amortization	1,267
Industrial Property | Pataskala, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,628
Buildings and Improvements	0
Total	3,628
Accumulated Depreciation and Amortization	0
Industrial Property | Streetsboro, Ohio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,441
Buildings and Improvements	25,282
Total	27,723
Accumulated Depreciation and Amortization	10,426
Industrial Property | Wilsonville, Oregon
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	6,815
Buildings and Improvements	32,424
Total	39,239
Accumulated Depreciation and Amortization	4,606
Industrial Property | Bristol, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,508
Buildings and Improvements	15,863
Total	18,371
Accumulated Depreciation and Amortization	8,248
Industrial Property | Chester, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,763
Land and Land Estates	1,629
Buildings and Improvements	8,470
Total	10,099
Accumulated Depreciation and Amortization	2,269
Industrial Property | Duncan, South Carolina | Duncan, SC Industrial Acquired Oct-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,406
Buildings and Improvements	14,272
Total	15,678
Accumulated Depreciation and Amortization	155
Industrial Property | Duncan, South Carolina | Duncan, SC Industrial Acquired Oct-19, Property 2
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,257
Buildings and Improvements	13,252
Total	14,509
Accumulated Depreciation and Amortization	144
Industrial Property | Duncan, South Carolina | Duncan, SC Industrial Acquired Apr-19
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,615
Buildings and Improvements	27,830
Total	29,445
Accumulated Depreciation and Amortization	821
Industrial Property | Duncan, South Carolina | Duncan, SC Industrial Acquired Jun-07
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	884
Buildings and Improvements	8,749
Total	9,633
Accumulated Depreciation and Amortization	2,818
Industrial Property | Greer, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	6,959
Buildings and Improvements	78,364
Total	85,323
Accumulated Depreciation and Amortization	0
Industrial Property | Laurens, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,552
Buildings and Improvements	21,908
Total	27,460
Accumulated Depreciation and Amortization	8,465
Industrial Property | Spartanburg, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,447
Buildings and Improvements	23,758
Total	25,205
Accumulated Depreciation and Amortization	1,706
Industrial Property | Cleveland, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,871
Buildings and Improvements	29,743
Total	31,614
Accumulated Depreciation and Amortization	3,461
Industrial Property | Crossville, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	545
Buildings and Improvements	6,999
Total	7,544
Accumulated Depreciation and Amortization	4,924
Industrial Property | Franklin, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	0
Buildings and Improvements	5,673
Total	5,673
Accumulated Depreciation and Amortization	3,519
Industrial Property | Jackson, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,454
Buildings and Improvements	49,026
Total	50,480
Accumulated Depreciation and Amortization	4,724
Industrial Property | Lewisburg, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	173
Buildings and Improvements	10,865
Total	11,038
Accumulated Depreciation and Amortization	1,923
Industrial Property | Millington, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	723
Buildings and Improvements	19,383
Total	20,106
Accumulated Depreciation and Amortization	13,881
Industrial Property | Smyrna, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,793
Buildings and Improvements	93,940
Total	95,733
Accumulated Depreciation and Amortization	9,277
Industrial Property | Arlington, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	589
Buildings and Improvements	7,739
Total	8,328
Accumulated Depreciation and Amortization	1,899
Industrial Property | Brookshire, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,388
Buildings and Improvements	16,614
Total	19,002
Accumulated Depreciation and Amortization	3,692
Industrial Property | Carrollton, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,228
Buildings and Improvements	15,784
Total	19,012
Accumulated Depreciation and Amortization	1,319
Industrial Property | Dallas, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,420
Buildings and Improvements	23,330
Total	25,750
Accumulated Depreciation and Amortization	657
Industrial Property | Grand Prairie, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,166
Buildings and Improvements	17,985
Total	21,151
Accumulated Depreciation and Amortization	1,950
Industrial Property | Houston, Texas | Houston, TX Industrial Acquired Mar-15
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,674
Buildings and Improvements	19,540
Total	24,214
Accumulated Depreciation and Amortization	10,153
Industrial Property | Houston, Texas | Houston, TX Industrial Acquired Mar-13
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	15,055
Buildings and Improvements	57,949
Total	73,004
Accumulated Depreciation and Amortization	12,174
Industrial Property | Missouri City, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	14,555
Buildings and Improvements	5,895
Total	20,450
Accumulated Depreciation and Amortization	5,895
Industrial Property | Pasadena, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,057
Buildings and Improvements	17,810
Total	21,867
Accumulated Depreciation and Amortization	1,085
Industrial Property | San Antonio, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,311
Buildings and Improvements	36,644
Total	37,955
Accumulated Depreciation and Amortization	3,940
Industrial Property | Chester, Virginia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	8,544
Buildings and Improvements	53,067
Total	61,611
Accumulated Depreciation and Amortization	2,854
Industrial Property | Winchester, Virginia | Winchester, VA Industrial Acquired Dec-17
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,988
Buildings and Improvements	32,536
Total	34,524
Accumulated Depreciation and Amortization	2,784
Industrial Property | Winchester, Virginia | Winchester, VA Industrial Acquired Jun-07
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,823
Buildings and Improvements	12,276
Total	16,099
Accumulated Depreciation and Amortization	4,615
Industrial Property | Bingen, Washington
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	0
Buildings and Improvements	18,075
Total	18,075
Accumulated Depreciation and Amortization	5,201
Industrial Property | Oak Creek, Wisconsin
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,015
Buildings and Improvements	15,300
Total	18,315
Accumulated Depreciation and Amortization	3,040
Industrial properties, Multi-tenant/vacant properties | Moody, Alabama
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	654
Buildings and Improvements	11,325
Total	11,979
Accumulated Depreciation and Amortization	7,902
Industrial properties, Multi-tenant/vacant properties | Thomson, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	909
Buildings and Improvements	7,746
Total	8,655
Accumulated Depreciation and Amortization	2,024
Industrial properties, Multi-tenant/vacant properties | Henderson, North Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,488
Buildings and Improvements	5,953
Total	7,441
Accumulated Depreciation and Amortization	2,698
Industrial properties, Multi-tenant/vacant properties | Antioch, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,847
Buildings and Improvements	12,659
Total	16,506
Accumulated Depreciation and Amortization	4,036
Office Building | Tempe, Arizona
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	0
Buildings and Improvements	13,086
Total	13,086
Accumulated Depreciation and Amortization	3,537
Office Building | Tucson, Arizona
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	681
Buildings and Improvements	4,037
Total	4,718
Accumulated Depreciation and Amortization	1,277
Office Building | Palo Alto, California
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	26,301
Land and Land Estates	12,398
Buildings and Improvements	16,977
Total	29,375
Accumulated Depreciation and Amortization	24,397
Office Building | Boca Raton, Florida
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	18,465
Land and Land Estates	4,290
Buildings and Improvements	17,160
Total	21,450
Accumulated Depreciation and Amortization	7,240
Office Building | Orlando, Florida
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,538
Buildings and Improvements	9,353
Total	12,891
Accumulated Depreciation and Amortization	7,007
Office Building | McDonough, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	693
Buildings and Improvements	6,405
Total	7,098
Accumulated Depreciation and Amortization	1,772
Office Building | Lenexa, Kansas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,828
Buildings and Improvements	6,075
Total	8,903
Accumulated Depreciation and Amortization	2,101
Office Building | Baton Rouge, Louisiana
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	760
Buildings and Improvements	3,838
Total	4,598
Accumulated Depreciation and Amortization	0
Office Building | Oakland, Maine
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	551
Buildings and Improvements	8,774
Total	9,325
Accumulated Depreciation and Amortization	2,642
Office Building | Kansas City, Missouri
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,525
Buildings and Improvements	10,164
Total	11,689
Accumulated Depreciation and Amortization	582
Office Building | Wall, New Jersey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,576
Land and Land Estates	8,985
Buildings and Improvements	26,961
Total	35,946
Accumulated Depreciation and Amortization	16,773
Office Building | Whippany, New Jersey
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	11,572
Land and Land Estates	4,063
Buildings and Improvements	19,711
Total	23,774
Accumulated Depreciation and Amortization	10,639
Office Building | Philadelphia, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	13,209
Buildings and Improvements	65,911
Total	79,120
Accumulated Depreciation and Amortization	44,298
Office Building | Florence, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	774
Buildings and Improvements	3,629
Total	4,403
Accumulated Depreciation and Amortization	833
Office Building | Fort Mill, South Carolina | Fort Mill, SC Office, Acquired Nov-04
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,798
Buildings and Improvements	26,964
Total	28,762
Accumulated Depreciation and Amortization	20,373
Office Building | Fort Mill, South Carolina | Fort Mill, SC Office, Acquired Dec-02
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	3,601
Buildings and Improvements	16,306
Total	19,907
Accumulated Depreciation and Amortization	6,836
Office Building | Knoxville, Tennessee
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	621
Buildings and Improvements	6,566
Total	7,187
Accumulated Depreciation and Amortization	1,861
Office Building | Arlington, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,274
Buildings and Improvements	15,359
Total	16,633
Accumulated Depreciation and Amortization	4,013
Office Building | Lake Jackson, Texa
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	183,077
Land and Land Estates	7,435
Buildings and Improvements	141,436
Total	148,871
Accumulated Depreciation and Amortization	18,027
Office Building | Mission, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,556
Buildings and Improvements	2,911
Total	5,467
Accumulated Depreciation and Amortization	1,172
Office Building | Westlake, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	2,361
Buildings and Improvements	27,788
Total	30,149
Accumulated Depreciation and Amortization	14,952
Office Building | Herndon, Virginia
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,127
Buildings and Improvements	25,293
Total	30,420
Accumulated Depreciation and Amortization	12,071
Office Building, Multi-tenant/vacant properties | Phoenix, Arizona
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,096
Buildings and Improvements	6,228
Total	7,324
Accumulated Depreciation and Amortization	517
Office Building, Multi-tenant/vacant properties | Overland Park, Kansas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	32,112
Land and Land Estates	2,025
Buildings and Improvements	10,976
Total	13,001
Accumulated Depreciation and Amortization	4,242
Office Building, Multi-tenant/vacant properties | Charleston, South Carolina
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,830
Land and Land Estates	1,189
Buildings and Improvements	9,419
Total	10,608
Accumulated Depreciation and Amortization	5,104
Office Building, Multi-tenant/vacant properties | Houston, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,875
Buildings and Improvements	10,959
Total	12,834
Accumulated Depreciation and Amortization	8,449
Other Property | Venice, Florida
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,696
Buildings and Improvements	11,753
Total	16,449
Accumulated Depreciation and Amortization	10,517
Other Property | Baltimore, Maryland | Baltimore, MD Other Acquired Dec-06
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,605
Buildings and Improvements	0
Total	4,605
Accumulated Depreciation and Amortization	0
Other Property | Baltimore, Maryland | Baltimore, MD Other Acquired Dec-15
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,000
Buildings and Improvements	0
Total	5,000
Accumulated Depreciation and Amortization	0
Other properties, Multi-tenant/vacant properties | Honolulu, Hawaii
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	8,259
Buildings and Improvements	7,471
Total	15,730
Accumulated Depreciation and Amortization	7,402
Construction in Progress
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	0
Buildings and Improvements	0
Total	1,895
Accumulated Depreciation and Amortization	$ 0